Purnea is a district in ((Bihar)). HQ Purnea Area 3,229 sq. kms. Population Total 18,78,885 Rural 17,20,743 Urban 1,58,142 SC Population Total 2,34,478 Rural 2,20,524 Urban 13,954 ST Population Total 82,145 Rural 76,554 Urban 5,591 Sub Divisions Banmankhi, Dhamdaha, Purnea, Vaishi. Blocks Purnia, Amaur, Bhawanipur, Banmankhi, Dhamdaha, Baisa, Vaisi, Barharakothi, Kasba, Rupauli, Krityanandnagar, Dagarua, Srinagar, Jalalgarh. Agriculture Jute. Industry Jute Mills. Rivers Kosi, Mahananda, Suwara Kali and Koli.